Washington, Feb 6 : As Jennifer Aniston gears up to celebrate her 40th birthday next week, the milestone, it seems, is leaving her in a tizzy.

Although the former `Friends' star says that she's feeling great- she admits to a moment where she feels she doesn''t want to turn 40.

"I have to say really, I feel better than I ever felt in my life," People quoted Aniston as saying on The Ellen DeGeneres Show.

"I did have a moment, though, over the weekend my first like huh. . I don''t want to [turn 40].

"I found a really long gray hair and it kind of flipped me out. It''s not my first but it''s the fact that it was so long. I was like, ''Oh that''s been there. How many others are there, and what does that mean?

"It actually brought me to tears slightly," she added. (ANI)